Finding the Fourth Proportional to 1,078,403.63, 1,617,634.60 and 330,449.63
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Solution
The fourth proportional to 1,078,403.63, 1,617,634.60 and 330,449.63 is: 495,683.37
Step by Step Solution
- Step 1: Write the proportion equation
1,078,403.63 : 1,617,634.60 = 330,449.63 : x - Step 2: Convert to fraction form
1,078,403.63/1,617,634.60 = 330,449.63/x - Step 3: Cross multiply
1,078,403.63x = 1,617,634.60 × 330,449.63 - Step 4: Simplify right side
1,078,403.63x = 534,546,746,130.90 - Step 5: Solve for x
x = 534,546,746,130.90/1,078,403.63 - Step 6: Final answer
x = 495,683.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.